strange (?) noise

t0mm1 · 11th February 2012, 07:00 PM

Hi,

First, I just have to say that I'm a newbie... and excuse in advance for all stupid things I'm going to ask here below ;-)

I have built my own speakers, using DLS drivers.

From one of my 4" mids, I get a little, but still annoying, noise. The noise is in the lower frequencies. When I put a little little pressure from my finger on the rubber-thing that is holding the membrane, this noise disappears.
I also think (but I'm not really sure) that this noise appears more easilly if I take out the driver from the speaker-box.

Do you guys have a clue?

Thanks!

weltersys · 11th February 2012, 07:08 PM

The speaker baffle may be warped, or the speaker is not properly torqued, warping the frame and causing the voice coil to drag slightly.

t0mm1 · 11th February 2012, 07:14 PM

Quote:

Originally Posted by weltersys

The speaker baffle may be warped, or the speaker is not properly torqued, warping the frame and causing the voice coil to drag slightly.

Is there anything I can do if, say, the frame is warped?

system7 · 11th February 2012, 07:46 PM

Yup, turn the speaker upside down.

They often are misaligned, and having it upside down cures it.

Cal Weldon · 11th February 2012, 07:53 PM

If it is a warped baffle, try backing off the screws a bit. If that's the cure, add a gasket.

11th February 2012, 07:00 PM	#1
t0mm1 diyAudio Member Join Date: Jan 2012	strange (?) noise Hi, First, I just have to say that I'm a newbie... and excuse in advance for all stupid things I'm going to ask here below ;-) I have built my own speakers, using DLS drivers. From one of my 4" mids, I get a little, but still annoying, noise. The noise is in the lower frequencies. When I put a little little pressure from my finger on the rubber-thing that is holding the membrane, this noise disappears. I also think (but I'm not really sure) that this noise appears more easilly if I take out the driver from the speaker-box. Do you guys have a clue? Thanks!

11th February 2012, 07:46 PM	#4
system7 diyAudio Member Join Date: Aug 2008	Yup, turn the speaker upside down. They often are misaligned, and having it upside down cures it. __________________ Best Regards from Steve in Portsmouth, UK.

11th February 2012, 07:53 PM	#5
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	If it is a warped baffle, try backing off the screws a bit. If that's the cure, add a gasket. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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11th February 2012, 07:08 PM	#2
weltersys diyAudio Member Join Date: Jan 2008	The speaker baffle may be warped, or the speaker is not properly torqued, warping the frame and causing the voice coil to drag slightly.

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